Consistency of J_IC and K_IC on Characterizing the Fracture Toughness of Small Size Samples

Abstract:

Fracture toughness is one of the important parameters to characterize the general mechanical properties of materials, Tests for determining are usually performed on a fatigue test machine. However, for some large structure parts, such as hydropower generator rotor, weighing several tons or even one hundred tons, it requires large samples for testing, which results in the large loss of the materials.. In the present work, we use a small sample to measure its , and the consistency of and on characterizing fracture toughness of small size samples was analyzed. Both the experimental results and theoretical calculations show that, under certain experimental conditions, can replace to characterize the fracture toughness.

• Periodical: Advanced Materials Research (Volumes 217-218)
• Pages: 372-376
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.217-218.372
• Online since: March 2011
• Authors: Xiao Jun Wan
• Keywords: Characterize, Consistency of J_IC and K_IC, Fracture Toughness, Small Size Sample

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